It is unclear whether Bilic will start Moses from kick-off following the impressive form of Dimitri Payet, Mauro Zarate, Manuel Lanzini and Diafrako Sahko.

Bilic said at the club's press conference on Friday:

"The plan is to put the players who are good on the ball in areas of the pitch where they can play together, but they must work hard when they do not have the ball. It is not very easy but that is what the guys are doing now.

"We have a lot of skill. Mauro Zarate, Dimitri Payet and Manuel Lanzini are all better on the ball than without it. They are magicians who can do wonders with the ball and if you put them all in your team, you might suffer a little bit defensively but the great thing is they are doing the dirty work as well.

"When the players who are good on the ball are taking that responsibility, then you have a great chance.

"We have a lot we can improve on, too. At the end of the day, we are a team with many players who have only been together for a couple of months.

Bilic further paid compliments to the transfer drive that saw the likes of Moses arrive at the club.

"There is no secret to our success. The core group we had here before I arrived are really good and the club did some really good work in the transfer window," the former Croatia coach said.

However top scorer in all tiers of English football in 2015 with 21 goals, Ighalo, is expected to once again start for Watford.
Ighalo did not score in their 2-0 win against Osaze Odemwingie's Stoke City the last time out but was the chief creator in the game as he provided assists for both goals.

The former Udinese and Granada striker made three key passes and 24 passes in their last game.

“It is amazing,” Watford manager Quique Flores said when asked about a chant in his honour by fans. “I don’t have the time to say thank you. During the match I am focused on other things and I am a little bit shy.

“The players are in the game but the fans are complimenting me. In that moment I want to jump into the stand and hug every fan one by one.

“But all I can say is thank you because they value the work of the staff and the work of the team,” Flores said.

West Ham United, third in the table with 20 points, have a form record of WWDDWW in the past six games while that of Watford is WWLDLW.